Apple is one of the fruits, is a subfamily of the genus Rosaceae, and its tree is deciduous. The fruit of apples is rich in minerals and vitamins and is one of the fruits that people often eat. Apple is a low-calorie food that produces 60 kilocalories per 100 grams. The nutrients in apples are so soluble that they are easily absorbed by the body, so they are called "live water". It is beneficial for dissolving sulfur and making the skin smooth and soft. Apple is native to central Europe, southeastern Europe, Central Asia, and Xinjiang, China. In Europe three hundred BC, M.P.Cato has documented the variety of apples. Later, the Romans began to cultivate and grafted and reproduced.